Search results

Search for "coatings" in Full Text gives 296 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Nanoscale friction and wear of a polymer coated with graphene

  • Robin Vacher and
  • Astrid S. de Wijn

Beilstein J. Nanotechnol. 2022, 13, 63–73, doi:10.3762/bjnano.13.4

Graphical Abstract
  • [5][9][10][11][12][13][14][15][16][17][18][19]. The effect of graphene coatings and their ability to protect against wear depend on the substrate underneath. So far, they have been studied almost exclusively on metals [20][21]. The tribological properties of polymers coated with graphene have barely
  • been studied on the nanoscale due to the added complexity of the polymer, the tribology of which, even without any coatings, is still not well understood [22][23]. In experiments, the tribology of polymer composite materials containing graphene has been studied with the goal of constructing a self
PDF
Album
Full Research Paper
Published 14 Jan 2022

Sputtering onto liquids: a critical review

  • Anastasiya Sergievskaya,
  • Adrien Chauvin and
  • Stephanos Konstantinidis

Beilstein J. Nanotechnol. 2022, 13, 10–53, doi:10.3762/bjnano.13.2

Graphical Abstract
  • gauge, the electric power supply, and the gas inlets. Sputtering processes have been studied and developed for a long time [7][8] and have been implemented in the coating industry to deposit nanometer-scale films onto various solid substrates. Such functional coatings must have tailored physicochemical
  • properties to fit the targeted application in fields such as mechanics, optics, electronics, and biomaterials. Various types of coatings can be produced, from pure metals to metal oxides, nitrides, carbides, oxynitrides to metal alloys, or chemically more complex combinations such as high-entropy alloys [24
  • Figure 3a, along with some typical variations (Figure 3b) that allow to further extend the possibilities towards the deposition of multielemental coatings. In Figure 3b, the deposition of elements A and B is depicted but the deposition processes can be further upgraded to include three cathodes (or more
PDF
Album
Supp Info
Review
Published 04 Jan 2022

Biocompatibility and cytotoxicity in vitro of surface-functionalized drug-loaded spinel ferrite nanoparticles

  • Sadaf Mushtaq,
  • Khuram Shahzad,
  • Tariq Saeed,
  • Anwar Ul-Hamid,
  • Bilal Haider Abbasi,
  • Nafees Ahmad,
  • Waqas Khalid,
  • Muhammad Atif,
  • Zulqurnain Ali and
  • Rashda Abbasi

Beilstein J. Nanotechnol. 2021, 12, 1339–1364, doi:10.3762/bjnano.12.99

Graphical Abstract
  • ligand used for functionalization may contribute to a genotoxic activity. Smaller NPs (<50 nm) have large surface area which increases their biological interactions and hence genotoxic potential [54]. Polymeric coatings, on the other hand, are aimed to enhance colloidal stability and facilitate the
  • interaction between NPs a plasma membrane associated proteins [55]. In addition, the charge of polymeric coatings also governs NP uptake by cells. Positively charged polymers have been reported to enhance genotoxicity due to better internalization of NPs via the plasma membrane (electrostatic interaction) and
PDF
Album
Full Research Paper
Published 02 Dec 2021

Identifying diverse metal oxide nanomaterials with lethal effects on embryonic zebrafish using machine learning

  • Richard Liam Marchese Robinson,
  • Haralambos Sarimveis,
  • Philip Doganis,
  • Xiaodong Jia,
  • Marianna Kotzabasaki,
  • Christiana Gousiadou,
  • Stacey Lynn Harper and
  • Terry Wilkins

Beilstein J. Nanotechnol. 2021, 12, 1297–1325, doi:10.3762/bjnano.12.97

Graphical Abstract
  • for modelling of the 120 hpf excess lethality data could reflect biological significance arising from the nature of any surface coatings, rather than the presence or absence of any organic coating having general significance. Second, qualitative surface charge information, including “unknown” status
  • , was represented using binary variables for each value. Their negligible significance might partly reflect the limited availability of this information. Finally, the specific chemical composition of the organic surface coatings was represented using molecular descriptors designed to capture
PDF
Album
Supp Info
Full Research Paper
Published 29 Nov 2021

An overview of microneedle applications, materials, and fabrication methods

  • Zahra Faraji Rad,
  • Philip D. Prewett and
  • Graham J. Davies

Beilstein J. Nanotechnol. 2021, 12, 1034–1046, doi:10.3762/bjnano.12.77

Graphical Abstract
  • procedure for producing γ-PGA microneedles, (b) microneedles fabricated via the procedure represented in (a) as used to penetrate pig and mouse cadaver skin [72]. (c) Stereolithography (STL) used to manufacture microneedle arrays followed by coatings of insulin and sugar solution using an inkjet printer [83
PDF
Album
Review
Published 13 Sep 2021

Progress and innovation of nanostructured sulfur cathodes and metal-free anodes for room-temperature Na–S batteries

  • Marina Tabuyo-Martínez,
  • Bernd Wicklein and
  • Pilar Aranda

Beilstein J. Nanotechnol. 2021, 12, 995–1020, doi:10.3762/bjnano.12.75

Graphical Abstract
  • nanometric Na coatings. For instance, Zhang et al. [69] used carbon fiber paper (CFP) to grow a Na layer from a metal Na electrode (Figure 9B). In the case of carbon hosts it needs to be kept in mind that Na+ can also insert into the material as will be discussed further below. Therefore, the specific
PDF
Album
Review
Published 09 Sep 2021

Comprehensive review on ultrasound-responsive theranostic nanomaterials: mechanisms, structures and medical applications

  • Sepand Tehrani Fateh,
  • Lida Moradi,
  • Elmira Kohan,
  • Michael R. Hamblin and
  • Amin Shiralizadeh Dezfuli

Beilstein J. Nanotechnol. 2021, 12, 808–862, doi:10.3762/bjnano.12.64

Graphical Abstract
PDF
Album
Review
Published 11 Aug 2021

Silver nanoparticles induce the cardiomyogenic differentiation of bone marrow derived mesenchymal stem cells via telomere length extension

  • Khosro Adibkia,
  • Ali Ehsani,
  • Asma Jodaei,
  • Ezzatollah Fathi,
  • Raheleh Farahzadi and
  • Mohammad Barzegar-Jalali

Beilstein J. Nanotechnol. 2021, 12, 786–797, doi:10.3762/bjnano.12.62

Graphical Abstract
  • aggregates [34]. Polymer coatings can be used to prevent the NPs from aggregating. In the present study, polyvinylpyrrolidone-coated Ag-NPs were used. Another important aspect of the behavior of Ag-NPs is the rate and degree of the dissolution of Ag-NPs, which depends on their surface functionalization
PDF
Album
Full Research Paper
Published 02 Aug 2021

Recent progress in magnetic applications for micro- and nanorobots

  • Ke Xu,
  • Shuang Xu and
  • Fanan Wei

Beilstein J. Nanotechnol. 2021, 12, 744–755, doi:10.3762/bjnano.12.58

Graphical Abstract
  • iron oxide nanoparticles [46] has advantages over magnetic surface coatings, such as cobalt or nickel. Diamagnetic nanoparticles Applying an external magnetic force to manipulate the MNRs has become a frontier field of research. Uvet et al. [47] proposed a new microrobot manipulation technology based
PDF
Album
Review
Published 19 Jul 2021

Fate and transformation of silver nanoparticles in different biological conditions

  • Barbara Pem,
  • Marija Ćurlin,
  • Darija Domazet Jurašin,
  • Valerije Vrček,
  • Rinea Barbir,
  • Vedran Micek,
  • Raluca M. Fratila,
  • Jesus M. de la Fuente and
  • Ivana Vinković Vrček

Beilstein J. Nanotechnol. 2021, 12, 665–679, doi:10.3762/bjnano.12.53

Graphical Abstract
  • , which listed more than 100 AgNP-containing food products [4]. The biomedical use of AgNPs represents the largest proportion of the market share [1] encompassing antimicrobial coatings on medical devices (catheters, stents, implants), wound dressings, targeted drug delivery, cancer therapy and
  • such conditions, the repulsive electrostatic forces between particles with the same surface charge are weakened, leading to aggregation upon collision [10]. The AgNPs with bulky coatings are less sensitive to this, since their stabilisation is steric and not electrostatic [14]. The dissolution of AgNPs
PDF
Album
Supp Info
Full Research Paper
Published 07 Jul 2021

A review of defect engineering, ion implantation, and nanofabrication using the helium ion microscope

  • Frances I. Allen

Beilstein J. Nanotechnol. 2021, 12, 633–664, doi:10.3762/bjnano.12.52

Graphical Abstract
  • electrons also permits high-quality imaging of electrically insulating materials, such as biological samples, thus avoiding the need for conductive coatings that can introduce artifacts and obscure nanoscale surface features [6][7]. Through extension of the technology to enable operation of the ion source
PDF
Album
Review
Published 02 Jul 2021

High-yield synthesis of silver nanowires for transparent conducting PET films

  • Gul Naz,
  • Hafsa Asghar,
  • Muhammad Ramzan,
  • Muhammad Arshad,
  • Rashid Ahmed,
  • Muhammad Bilal Tahir,
  • Bakhtiar Ul Haq,
  • Nadeem Baig and
  • Junaid Jalil

Beilstein J. Nanotechnol. 2021, 12, 624–632, doi:10.3762/bjnano.12.51

Graphical Abstract
  • using the Beer–Lambert equation: To investigate the effect of the number of coatings on the transparency of the PET film, a range of film samples was prepared with different AgNW ink dispersion volumes (0.25, 0.5, 0.6, and 0.7 mL) and characterized as dispersion volume per unit area (V/A), where A
  • % with Rs = 17 Ω/sq. The film with V/A = 0.6 mL/A displayed T = 44% with Rs = 13 Ω/sq, and the film with V/A = 0.7 mL/A displayed T = 40% with Rs = 11.3 Ω/sq. These results show that an increase in the number of ink coatings results in a decrease of transmittance and sheet resistance values of the AgNW
PDF
Album
Full Research Paper
Published 01 Jul 2021

On the stability of microwave-fabricated SERS substrates – chemical and morphological considerations

  • Limin Wang,
  • Aisha Adebola Womiloju,
  • Christiane Höppener,
  • Ulrich S. Schubert and
  • Stephanie Hoeppener

Beilstein J. Nanotechnol. 2021, 12, 541–551, doi:10.3762/bjnano.12.44

Graphical Abstract
  • intensity level obtained for the non-treated Ag reference and the blue dotted lines mark the Raman intensity level of the water-treated substrate. Stability test of microwave-fabricated SERS substrates in PBS solutions at different pH values. (a) SEM images of Ag nanoparticle coatings after 1 h of immersion
  • dotted line marks the Raman intensity level obtained for 1 h of water treatment. Stability test of microwave-fabricated SERS substrates for different buffer solutions with different pH values. (a) SEM images of Ag nanoparticle coatings after 1 h of immersion into different buffer solutions. (b) SERS
PDF
Album
Supp Info
Full Research Paper
Published 11 Jun 2021

Solution combustion synthesis of a nanometer-scale Co3O4 anode material for Li-ion batteries

  • Monika Michalska,
  • Huajun Xu,
  • Qingmin Shan,
  • Shiqiang Zhang,
  • Yohan Dall'Agnese,
  • Yu Gao,
  • Amrita Jain and
  • Marcin Krajewski

Beilstein J. Nanotechnol. 2021, 12, 424–431, doi:10.3762/bjnano.12.34

Graphical Abstract
  • the formation of composite materials consisting of Co3O4 and different materials, including carbon-based materials, such as graphene [7][8], carbon nanotubes [9], carbon coatings [10], dictyophora indusiata-derived carbon [11], or other transition metal oxides [12]. This approach usually leads to a
PDF
Album
Supp Info
Full Research Paper
Published 10 May 2021

Colloidal particle aggregation: mechanism of assembly studied via constructal theory modeling

  • Scott C. Bukosky,
  • Sukrith Dev,
  • Monica S. Allen and
  • Jeffery W. Allen

Beilstein J. Nanotechnol. 2021, 12, 413–423, doi:10.3762/bjnano.12.33

Graphical Abstract
  • variety of applications, including plasmonic/photonic devices, metamaterials, biomaterials and coatings, energetic materials, and high-strength ceramics [15][16][17][18][19][20][21][22][23][24][25]. Most applications, however, require precise manipulation of the particle placement, spacing, and
PDF
Album
Full Research Paper
Published 06 May 2021

Differences in surface chemistry of iron oxide nanoparticles result in different routes of internalization

  • Barbora Svitkova,
  • Vlasta Zavisova,
  • Veronika Nemethova,
  • Martina Koneracka,
  • Miroslava Kretova,
  • Filip Razga,
  • Monika Ursinyova and
  • Alena Gabelova

Beilstein J. Nanotechnol. 2021, 12, 270–281, doi:10.3762/bjnano.12.22

Graphical Abstract
  • endocytosis. BSA-SO-MNPs were internalized via CME while PEG-SO-MNPs were taken up via CavME or lipid rafts. These findings confirm the major role of nanoparticle coatings on cellular entry mechanisms. Our data suggest that the effects of endocytic inhibitors on the internalization pathways are rather complex
PDF
Album
Supp Info
Full Research Paper
Published 23 Mar 2021

The nanomorphology of cell surfaces of adhered osteoblasts

  • Christian Voelkner,
  • Mirco Wendt,
  • Regina Lange,
  • Max Ulbrich,
  • Martina Gruening,
  • Susanne Staehlke,
  • Barbara Nebe,
  • Ingo Barke and
  • Sylvia Speller

Beilstein J. Nanotechnol. 2021, 12, 242–256, doi:10.3762/bjnano.12.20

Graphical Abstract
  • adhesion interface areas are desired. Regarding this, a variety of surface coatings was assessed. Relevant parameters may be the zeta potential and pre-adsorbed cell adhesion proteins from the serum of the medium [4][10]. Before osteoblasts start the adhesion and spreading programs, they settle on the
  • coatings of positively charged plasma-polymerized allylamine (PPAAm) or negatively charged Au were used, see below. Viability tests (MTS) were performed on glass, sputter-deposited Au, polydimethylsiloxane (PDMS), and PPAAm coating with native titanium and cell culture plastic as reference. Cell viability
PDF
Album
Full Research Paper
Published 12 Mar 2021

Determination of elastic moduli of elastic–plastic microspherical materials using nanoindentation simulation without mechanical polishing

  • Hongzhou Li and
  • Jialian Chen

Beilstein J. Nanotechnol. 2021, 12, 213–221, doi:10.3762/bjnano.12.17

Graphical Abstract
  • characterization of the mechanical behavior of filaments [1], thin films [2], microplastics, coatings, powders, small crystals, and other materials at small scales. One of the great advantages of the technique is that many mechanical properties of materials can be determined from the analysis of indentation load
PDF
Album
Full Research Paper
Published 19 Feb 2021

Toward graphene textiles in wearable eye tracking systems for human–machine interaction

  • Ata Jedari Golparvar and
  • Murat Kaya Yapici

Beilstein J. Nanotechnol. 2021, 12, 180–189, doi:10.3762/bjnano.12.14

Graphical Abstract
  • tailored explicitly to EOG-based human–computer/robot interaction (HCI/HRI). (a) Schematic of the three-step process to obtain conformal graphene coatings on a variety of textiles including nylon, cotton, and polyester; (b) image of the graphene textile “active” electrode with integrated buffer circuitry
PDF
Album
Supp Info
Full Research Paper
Published 11 Feb 2021

Imaging of SARS-CoV-2 infected Vero E6 cells by helium ion microscopy

  • Natalie Frese,
  • Patrick Schmerer,
  • Martin Wortmann,
  • Matthias Schürmann,
  • Matthias König,
  • Michael Westphal,
  • Friedemann Weber,
  • Holger Sudhoff and
  • Armin Gölzhäuser

Beilstein J. Nanotechnol. 2021, 12, 172–179, doi:10.3762/bjnano.12.13

Graphical Abstract
  • compensation capability, the HIM can image insulating biological samples without additional conductive coatings. Here, we present an exploratory HIM study of SARS-CoV-2 infected Vero E6 cells, in which several areas of interaction between cells and virus particles, as well as among virus particles, were imaged
  • coatings, albeit only a few nanometers thick, can significantly alter and conceal fine details of biological nanostructures [2], which is noticeable in SEM images of virus particles [19][24]. Since in the HIM positive charge accumulates on insulating samples, a low-energy electron flood gun can be used for
  • topography or material contrast. The deposited carbon film is presumably thinner than typical conductive metal or carbon coatings for SEM imaging, and it does not show any surface masking and clustering as seen on the gold substrate in the upper left of Figure 2b2. The energy of the incident hydrocarbons is
PDF
Album
Supp Info
Full Research Paper
Published 02 Feb 2021

Fusion of purple membranes triggered by immobilization on carbon nanomembranes

  • René Riedel,
  • Natalie Frese,
  • Fang Yang,
  • Martin Wortmann,
  • Raphael Dalpke,
  • Daniel Rhinow,
  • Norbert Hampp and
  • Armin Gölzhäuser

Beilstein J. Nanotechnol. 2021, 12, 93–101, doi:10.3762/bjnano.12.8

Graphical Abstract
  • reflection absorption spectroscopy (IRRAS). Experimental Preparation of SAMs and CNMs NBPT was purchased from Taros Chemicals (Dortmund, Germany). Thermally evaporated Au films (300 nm) on mica supports (Georg Albert physical vapor deposition coatings) were used as substrates for the SAM preparation
PDF
Album
Supp Info
Full Research Paper
Published 22 Jan 2021

Effect of different silica coatings on the toxicity of upconversion nanoparticles on RAW 264.7 macrophage cells

  • Cynthia Kembuan,
  • Helena Oliveira and
  • Christina Graf

Beilstein J. Nanotechnol. 2021, 12, 35–48, doi:10.3762/bjnano.12.3

Graphical Abstract
  • lipid peroxidation [29]. When UCNPs are applied in life sciences, it is usually necessary to modify their surfaces with hydrophilic ligands or layers [21][30][31]. These coatings can also prevent, to some extent, the interaction between UCNPs and the aqueous environment and, consequently, reduce their
  • disintegration processes. Several authors have reported the use of protective coatings, such as poly(acrylic acid) and poly(allylamine hydrochloride) [18], multichelating phosphonate [30][32][33], block copolymers [34], amphiphilic polymers [8][21], or polysulfonates [22]. Silica shells can also be used to
  • effect of silica particles of various sizes and surface coatings on RAW.246.7 cells. Their results are in agreement with our findings, which demonstrate that amino-functionalized silica particles have only a negligible impact on the cell cycle given that they are in the same size and concentration range
PDF
Album
Supp Info
Full Research Paper
Published 08 Jan 2021

Atomic layer deposited films of Al2O3 on fluorine-doped tin oxide electrodes: stability and barrier properties

  • Hana Krýsová,
  • Michael Neumann-Spallart,
  • Hana Tarábková,
  • Pavel Janda,
  • Ladislav Kavan and
  • Josef Krýsa

Beilstein J. Nanotechnol. 2021, 12, 24–34, doi:10.3762/bjnano.12.2

Graphical Abstract
  • semiconducting electrodes, such as ZnO. Aluminium oxide is another promising candidate for this task. It is amphoteric but insoluble in aqueous media at a neutral pH value [8][9]. ALD oxide layers, including Al2O3, were used as barrier coatings on copper to protect against corrosion in 0.1 M NaCl [10]. As
  • alumina coatings was ascribed to its capability of passivating semiconductor/electrolyte interfaces, thus reducing photogenerated charge-carrier recombination (e.g., on BiVO4 [16]). In this work, Al2O3 films were deposited via ALD on thermally grown SiO2 on silicon or on fluorine-doped tin oxide (FTO
PDF
Album
Supp Info
Full Research Paper
Published 05 Jan 2021

Bio-imaging with the helium-ion microscope: A review

  • Matthias Schmidt,
  • James M. Byrne and
  • Ilari J. Maasilta

Beilstein J. Nanotechnol. 2021, 12, 1–23, doi:10.3762/bjnano.12.1

Graphical Abstract
  • fabrication (lamellae preparation and conductive coatings) have hindered the studies of phage–bacterium interactions in their natural microbial environments. HIM imaging of phages and phage–bacterium interactions were performed for the first time in 2017 in [17] for bacterial colonies of E. coli on an agar
  • increased. This is due to several factors such as the ability to image without first coating a sample with conductive materials (e.g., Pt, Au, or C). Such coatings have been shown to cause artefacts which can be misinterpreted as being from the material under investigation [6]. Furthermore, helium ions have
PDF
Album
Review
Published 04 Jan 2021

Transient coating of γ-Fe2O3 nanoparticles with glutamate for its delivery to and removal from brain nerve terminals

  • Konstantin Paliienko,
  • Artem Pastukhov,
  • Michal Babič,
  • Daniel Horák,
  • Olga Vasylchenko and
  • Tatiana Borisova

Beilstein J. Nanotechnol. 2020, 11, 1381–1393, doi:10.3762/bjnano.11.122

Graphical Abstract
  • -[14C]glutamate absorption at the surface of the nanoparticles. This is because no glutamate/ʟ-[14C]glutamate coatings were registered in the synaptosomal incubation medium. There was also a limit to the nanoparticle concentration in the fluorescence experiments because of poor probe transparency
PDF
Album
Supp Info
Full Research Paper
Published 10 Sep 2020
Other Beilstein-Institut Open Science Activities